It appears that there is a Bluetooth advertisement monitor now in home assistant as per an update, And it shows a bunch of devices that I think are these Bluetooth trackers I have for keys.
Is there any way I can use these advertisements to make a Boolean that turns off after a specific one doesn’t report in for more than a particular amount of time?
Will the Mac addresses in home assistant correspond to something printed on these trackers so I can figure out which is which? Or do the addresses and home assistant change every once and a while making this impossible? It’s a nutale tracker that uses “find things” or “nut” not a tile tracker.
I think what you are looking for is the Bermuda integration to track room presence.
It also has device trackers for home / not home. The last one can be done without Bermuda too, but Bermuda is so much more powerful. If you want to keep it simple you can edit known_devices.yaml, but that file is deprecated and it is harder to do right.
As you mentioned many BLE devices change MAC to avoid tracking (e.g. phones, but more expensive trackers too.) For those you can use the private BLE integration. It combines well with Bermuda too.